Heating system.



J.l MUDONALD.

HEATING SYQTEM.

APPLICATION FILED MAY 7.1910.

1 l 1 6,31 1 Patented Nov. 3, 1914.

Z SHEETS" SHEET 1 4 Iii" 11/30 1 I I w f1 47. .Z

w d W 3 I L m 1/5/7222!" J. J. MCDONALD.

HEATING SYSTEM.

APPLICATION FILED MAY 711910, 1 1 1 6,31 1. Patented Nov. 3, 1914.

2 SHEETS SHEET 2.

JAMES J. lisDQNALD,

OF CLEVELAND, OHIO.

HEATING SYSTEM.

Specification of Letters Patent.

Patented Nov. 3, 1914.

A lication filed m 2, me. Serial! No. assess.

To all on it may concern Be it known that 1, JAMES J. MCDONALD,

a citizen of the United States, residing at Cleveland, in the county of Cuyahoge and State of Ohio, have invented a certain new and useful Improvement in Heating Systerns, of which the following is a full, clear,

and exact description, reference being had to the accompanying drawings.

This invention relates generally to an apparatus ior automatically regulating the flow of one fluid by variationsin the condition or pressure of another fluid. While my apparatus is particularly useful in connection with heating systems in which steam is circulated at a pressure below or nearly equal to that of the atmosphere, it will be understood that certain features thereof are of general application, being adapted for use i-*'herevei it is desirable to control or regulate the flow and pressure of fluids. Generally speaking, the invention may be defined as consisting of the combinations of elements embodied in the claims hereto annexed and illustrated in thedrawings forming part hereof, whc'rein Figure 1 represents an elevation of a system embodying my invention; Fig. 2 represents a vertical sectional detail of a trap employed with said system; Fi 3is a sectional detail corresponding to the ine 3-3- of Fig. 2 Fig. 4 is a sectional detail of the automatic valve by which the operation of the pump is controlled; an'dFig. 5 is a sectional detail of the liquid chamber interposed between the two portions of the pump shownin Fig; 1.

Describing the parts by reference'charactors, 1 denotes a pipe which may conduct air from a radiator or series of radiators. This pipe is provided with n valve 2 and a separator 3 having a connection t by means of which sediment may be discharged, through a valve '5 and checir valve 6, into a pipe 7, the lower end of which discharges into a sewer or other place adapted for the reception of waste Water. From the upperportlon of the separator 3 thereextends a pipe 8, which is connected with the operatmg cylinder 9 of a pump ,the power cylinder of which is shown at 10. The pipe 8 communicates with opposite ends of the cylini der 9, through connections 11 and 12, the former connection being located at the lower end of the cylinder and the latter at the upper end and being connected to pipe 8 by a pipe section 13. The cylinder 9 is connected at its opposite ends with the pipe 7 by means of outlet connections 14 and 15 and a PIPE section 16, the outlet connection 15 being located at the lower end of the cylinder and being connected with 14 by means of a pipe section 17. The pump is shown herein conventionally and it will be understood that suitable check valves will be provided with the connections 11, 12, 14 and 15 to cause the piston 18 to alternately exhaust from the connections 11 and I2 and discharge alternately t'hrough connections 14 and 15. The

ton rod 19' with the lower cylinder 10'.

The pipe 8 is shown as formed into a bend or coil within the chamber 21. This chamber is intended to receive water from a supply 22 and discharge the same, through an au-tomatically-operating valve 23, into a. pipe 2el whi'ch communicates with the cylindcr 19' for the purpose of operating the piston 20 therein. The exhaust from the cylinder lOiis discharged through a pipeconncction 25ai-ntothe pipe 7.

The automatic valve 23 is the general type shown in my application 334,882, filed September 17, 1906, and comprising a casing 26 having an inlet connection 26" for the pipe 22 which communicutes with the chamber 21. The casing 26 is provided with a diflerential valve 27, and this valve comprises a double piston the up per piston 28 of which is connected by an integral sleeve 29 with the lower combined piston and valve disk 30. The lower surface of the dislr 30 is recessed for the. recepti on of the packing or Washer 31. The valve 32 fits a port in the lower portion of the power piston 20 in the through the sleeve 29 and is provided at its upper end with the adjusting sleeve 33 resting upon the upper surface of the piston 28. Y The packing 31 rests upon an annular seat 34 surrounding the valve 32'. spring 35 is inserted in the upper" portion'of the casing and has its lower end engaging the piston 18 is connected by e pis;

preferably of valve casing 26' while the stem 32 extends 'piston 28- and its upper end engaging the v lower endjof a plug -36. The plug 36 serves as a connector between the casing 26 andthe diaphragm chamber 37. This plug is provided with anupper bore for the reception of the stem ofa 'valre 38 and with a lower smaller bore 39 commu nicating with the upper portionof the casing 26 and with a ing laterally tl1rough'a \itall thereof and communicating-with the chamber 40. The 7 upper end of the valve stemb'ears against the lower surface of a diaphra m 42 in the la'ehar'nber' 37 and the said stem rs provided with, a stopf 43, between which :and thc upper'l d of -the plug 36 is inserted a spiral spring 4-4. v

'Thed aDhraQmAZ is reta ned iu'nl'ace h:

I means of a'chainbered'member'45 having its lower end threadedinto the upper end I .of chamber 37 and being provided at its upper 'end'with an inte nahthread for the reception of a nipple '46, the upper end of. which-is inturn' threaded into; thelower portion of a diaphragm chamber47 ,48' denotes a diaphragm. extending across the upper end of the chamber 47. and 49 a anetallic inverted cup which is secured to'the lower surface of said diaphragm. and is adapted to seat on the subiacent portion' of mosphere' on the. top of the diaphragm 48 is considerably infexcess of the pressure 5 within said chamber as affected bytheaetion of a spring, which'will 'be'described later. The-member 45,-.nipple 46 and chamber 47 provide a'vconduit-connecting the opposed V sides .The member is provided with a bore or connection for the, reception "of a pipe 50 which connects the same with the portion of the 'pipe 8 extending downwardly from';

chambe-r21 a e 45 51 denotesa-rod, the upper end of which ,is reduced; and exfinded through the cup e i4'9dand diaphragm 48,

bearing againstthe upper surface of the diaphragm 42, opposite the upper end. .50 of the stemfofthe 'Valve 38.

The upper end of the rod 51 is convenientl threaded into and continuediby'a rod- 52 which-extends.

upwardly through the cross bar and apex of an A-shaped frame 53, which frame is carried by the ring 54 which lamps the outer edge of the. diaphragm-48- to the upper edge of the cup 17. The upper" end of the rod 52 is threaded and is proi idedwith a" wing nut, 55, between which and .the apex 3 0f the frame 53 there is interposed a spring '56: By'adjn'sting the nut 55. the tension of the spring 56 may be varie' prgper relation between the operating press"-n e"witl1i11v the chamber 47 and the atrnoschamber 40 in said'plug. 5

110. ,The plug is pr'orided'with a bore 41 extendber whereby said chamber thereby.

' bolted together.

thejchamber 47 when the pressure .of the at or faces of the diaphragms 42 and sleeve extending below the lower-end of said '65 and slightly end" of said *tion ofsedimcnt thereon.

to secure the pheric pressure acting on top of the diaconnected by means of a pipe with the pipe 7. The arrangement of the pipes 58- and fifi proi'ides a seal including the chamis kept substantially filled-with liquid at all times under a material head. The piston rod 1:) extends through the'chamber 57 and is liquid-packed The chamber ct ons. ach haying verticall -exi rniling flanges 57 by which the sections'may be mentary recess in the other section, a circularopemng. The piston rod 19 extends is made of two Eaclrchamber section is provided at the top and bottom thereof with a semi-circular recess, each recess in one sec .tion being adapted to form, with a-complethrough the circular opening thus provided .in the chamber 57 and ispacked by the con struction shown in Fig. 5. Sleeves 60 and 60 extend through the upper and the lower apertures, respectively, of said .cas ng.- The upper end ;the, sleeve (30;:1nd the lower end of the sleeve 60 are provided each with a packing nut. These nuts are shown at 61 of the packingjchambers'62; G2. projecting from the cylinders 9 and 10, respectively. P acl'ring63, ($3 ris inscrted into said chambers and is adapted to be compressed around i 'the piston i:od l9 by means of follower rings 6%},0-1 mounted in said packing nuts. The ends of thelsleeves (Kha id (30 .n-oject into the chamber 57, the lonier end 0 the former the outlet pipe 59 wherebyi the'lower end ofthesieeve isialways water-sealed.

line. The separator comprises-a casing 3;,

wh'ieh is providedw'h a laterally project- I F gs. 2 andv 3 I hare shown: the-con ,struction of separator employed in the air boss receiving the pipe 8.- The .bottom of the casing 3. is funnjel-shaped and is proqtided. with a boss 67' having an internal thread for the reception ofthe-up'pereud of thefpipe 4. i As will be observed by special {reference to Fig. '52-, the inclined bottom overhangs the threaded aperture mthe boss 67 to such a-nextcnt as to form a ledge (38 against whichf the upper end-0f the pipe 4 mayabut, which ledge ore-rhangsthc upper I pipe and prevents the accun ula The casing 3 is p rovidedwith a balile 69 projecting downwardly from thetop'and preferably-cast therewith. This bafile'pro nnssn considered, e distance below point J- i he pipe 1 dischs cs into the an annnulnr flange cast with the cas- 1'1 end hnllle 6 This flange is located mun uistely below theboss or connection 56 and is provided with an annular seat 72 located beiow its upper surface and preferably separated therefrom by an abrupt shoulder The upper end of the casing is pro ided with a th ceded aperture directly above the seat 72. This aperture is provided with a plug 2'4, which plug is pro vided with an internal seat 75 corresponding to the seat 72, and said plug is concaved within said seat, as shown. at; 76. The casing may be provided with another boss 7? located above the boss and shown in dotted lines in Fig. 2, which boss may affords connection to other apparatus or systems. The casing 3 may be provided all i with a nipple 78 establishing communication with a pressure gage 7 9.

The seats and To are for the reception oi cylindrical screen or strainer 80, erabiy of wire gauze, loo-er end of the plug 76 serves to co to screen 80 in assembling the parts a. to throw down any sediment, Whichmay pass with the fluid into the strainer, intc; the inclined lower end of the casing 3. The so rnng'emcnt of the ballle (39 serves to separate much of the sediment from the fluid passing tl-lrough the cesin by throwing the some downwardl y into t e lower inclined portion of the casing, This operating rendered more certain by the construction and location of the parts including the inlet connoo tion (35,theoutlct Connections 66 and (37 and the biz-file 69, The beveling of the lower end of the befile prevents any accumulation of sediment thereon.

-With the parts constructed as described, the operation will he as follows: When the pressure in the pipe 8, aided by the spring 55, and acting through the connection 50, is SUJ llCiP-Htto force the diaphragm a8 upwardly againstthe pressure of the atmosphcre, the lower end of the rod i moved away from the diaphragm 42, and the spring -14 will unseat the valve 38, thereby venting the chamber in upper end of cas ing 26 through the bore and the pipe 58. This will permit water from the pipe 22, casing 21 and pipe 22 to lift the piston 28 and valve 3'2, and water will then flow to the power cylinder to operate the pump.

This will cause the piston 18 to exhaust the air from the pipe 8 and dischar e it into the pipe 7. The water flowing from the so tonintic valve through the pipe 58 forms an pref- The. concavity 'in the.

" i luit, $2116! I I naice'd'tos d'ibonduit, a second conduit for efiicient liquidpaclcing for the piston rod to prevent the leakage of air, such leakage being resisted by the head of the water. The chamber 57 not only provides a Water packing for the piston rod but also protects the rod from dust, ashes, etc, that would otherwise adhere thereto and eventually cut the packings and piston rod. Furthermore, the smiling boxes through \vhich the piston rod passes may be adjusted Without disturbing the chamber Meanwhile, the tempera ture of the air flowing through the pipe 8 has been lowered by means of the water in the chamber '21 coming into contact with the coil in the pi we 8, so that this air may enter into and be discharged from the cylinder 9 without. injury to the leather, rubber or other packingsthat may be used in connection with such cylinder. The flow of water through the chamber 21 occurs simultaneously with the flow of relatively heated fluid through the coil of the conduit 8, owing to the automatic operation of the pump by pressure conditions in said conduit.

Having thus described my invention, what I claim is:

1. In a heating system, the combination of an air-exhaust conduit, means for automatically exl austing air through said conis comprising a pump consupplying pressure fluid to said'.pump to operate the some means governedf'by the pressure in the former-conduit jon zcontrolling the supply" of prcssurefiuid to the pump, and means whereby the pressure fluid m'dy cool the air in the former conduit to'its admission tothe pump.

2; In a heating system, the combination of af-pump having apower or motor cylinder and an operating cylinder, a conduit for supplying liquid to the former cylinder to operate the pump, an automatic device for controlling the llow'of liquid through said conduit, an 'air exhaust conduit extending to the second cylinder of the pump, a ,connec tion between said conduit and the automatic device in the first-mentioned conduit-where by said device may be operated by pressure conditions in the second conduit, and means for cooling the air in the exhaust conduit by the liquid employed to operate the pump.

3. In a heating system, thecombination of an air-exhaust conduit, a pump connecte to said conduit, 2, second conduit for sup ply ing water LO said pump to operate the same, means whereby the water which operates the pump may pass in cooling relation to the air in the former conduit, and means for simultaneously instituting the flow of air and through their respective conduits.

4.. -In a heating system, the combination of pump having a power-cylinder and an operating or pumping cylinder, :1 pressure prior fluid conduit communicating with the firstm'entioned cylinder, a. fluidconduit connectedwith I the other cylinder, a chamber through which one of said fluids flows and inclosing a part of the conduit for the other fluid, and means controlled by pressure conditions in one of said conduits for simultaneously instituting the flow of fluids through both of said conduits.

In a heatin system, the combination of a pump, a liquid conduit communicating therewith, said conduit including a chamber, an air-exhaust conduit connectedwith the operating part of said pump and extend ing through said chamber, and means Where by the supply of liquid through the chamber ,may be controlled by pressure conditions in the air-exhaust conduit.

(i. In a. heating system, the combination of a pump hav ng a power cylinder and an operating c linder, a piston in each of said i- .-'linders, a rod connecting said pistons, a chamber interposed between said cylinders, sleeves projecting from said cylinders into said chamber and surrounding said piston I rod,- au-air-cxliaust conduit connecting the heating an with the operating cylinder, a pressuieiluid supply connected with the power cylinder, inc-ans whereby said chamber may be filled with liquid under a materiallicad and means for cooling the air admitted to the operating cylinder.

7. In a heating system, the combination of a pump-having a power cylinder. and an operating cylinder, sleeves projecting from adjacent ends of said cylinders, a'piston in each cylinder, a piston rod conncctin'gsaid pistons and extending through said sleeves,

a chamber, inclosing the outer ends of said sleeves, means for maintaining in .said chamber a supply of liquid under pressure, an air-exhaust pipe connecting the heating system with the-operating cylinder, a pipe for supplying fluid under pressure to the power cylinder and nieansfor cooling the air admitted to thc operating cylinder 9, ln {r heating system, the combination ot'ia pump comprising a power cylinder and an operating cylinder, 'sleevcsproiecting from adjacent ends of the power and operating cylinders, a chamber inclosing the outer ends of said sleeves, a pipe for supplying liquid under pressure to the power cylinder, apipe. into which said power cyl' inder discharges, a liquid-supply pipe communicati-ngwith the former pipe and with said chamber, an outlet pipe extending from the upper portion of said chamber and connecting with the second pipe, an air-exhaust pipe, connection between said pipe and the operating cylinder means for cooling the air admitted to the operatingcylindcr.

Qnln a heating of pump having system, the combination a power cylinder and an operating cylinder, a sleeve projecting from each of said cylinders toward the other, a chamber inclosing the outer ends of said sleeves, a piston in each of said cylinders, a piston rod connecting said pistons and extending through said sleeves and said chamber, an air-exhaust pipe connecting the heating system with the'operating cylinder, a pressure-fluid conduit connected with.the power cylinder, :1 liquid-supply pipe -connected with the chamber, said chamber being provided with an outlet pipe, means (:0-

acting with said sleeves to pack said rod outside said chamber and means for cooling the air admitted to the operating cylinder.

10. In a heating system, the combination of a pump having a. suction cylinder, :1 piston therein, a piston rod extending through the end of saidcylinder, a sleeve surrounding said rod outside said cylinder, a charm her inclosing the outer end of said sleeve,

means for operating said piston, a liquid supply pipe comn'iunicating with said chamber and substantially filling the same with liquid under pressure, an air-exhaust pipe communicating with the heating system, a connection betweensaid pipe and the cylinder and means for cooling the air supplied through said pipe to the cylinder.

11. In aheating system, the combination of a pump having a power cylinder and an operating cylinder, a piston in each of said cylinders, a rod connecting said pistons chamber interposed between said cylinders fand through which said rod extends, an air exhaust conduit connecting the heating system with the operating cylinder, 3 pressure fluid supplyconnected with the power cylinder, means whereby the chamber may be kept substantially filled with liquid and means for cooling the air'admitted to the operating cylinder.

12. In a. heating system, the combination of a pump having a power cylinder and an operating cylinder, a piston in each of said cylinders, a piston rod connecting said pistons, a chamber interposed'between said cylinders'and through which said rod extends, an air exhaust conduit connecting the heating system with the operating cylinder, a pressure fluid supply connected with the power cylinder, means whereby the chamber may be filled with liquid under a material head and means for cooling the air admitted to the operating cylinder.

13 In a system of the character described, the combination With an exhaust pipe of an exhaust pump communicating therewith, a motor -operatively connected with said pump, means for supplying motive fluid to said pump, said means being arranged in. heat conductive relation to said exhaust pipe whereby said motive fluid may be used to cool the fluid in said exhaust pipe.

14; In a system of the character described,

iii exhaust pipe for gaverning the go 4' of motiva fluid to said. pump.

mm whemaf, E hereunto affix my he presence of two witnesses.

JAM 1S 5.. MGDQNALD. 

